@media screen and (max-width: 320px) {
    .api_group_menu>ul>li>.ant-menu-submenu-title {
        padding: 0 8px;
    }

    .api_group_menu .ant-menu-horizontal .ant-menu-submenu {
        margin: 0 4px;
    }

    .section-big-title {
        font-size: 14px;
    }

    .submenu-title-wrapper {
        font-size: 12px;
    }
}